Turbine.



nuco LENTZ, or HALENSEE, NEAR BERLIN, GERMANY.

TURBINE.

Specification of Letters went.

latented. May 1.1., 1909.

Application filed January 27, 19 09. Serial HO. 474,508.

To all whom it may concern:

Be it known th'atrI, HUGO LENTZ, a subect of the German Emperor, and residing at alensee, near Berlin, Germany, have infvented certain new and useful Improve ments in Turbines, of which the following is as ecification.

he present invention relates to steam and gas turbines and .a primary object is to provide such turbines having additional external casings.

In the case of steam and gas turbines known heretofore it has been generally customary to fasten theturbine-housing to a 1'5 bed-plate 'or-to secure it inv other suitable 'manner to the foundation and to build the guide blades and rotor into the same. In. the case of high pressure turbines it is usual in addition to attach the high pressure guiding devices to the turbine-housing 'after the. remaining parts have been assembled. In contradistinction to this known construction the subj'ect-matter -of the resent invention is va-turbine whichisbuiff in an ordinary housing with all the guiding and rotary devices, without thehousing being constructed directlyon thebed-plate. Onthe contrary, the housing is so constructed that it. can be inserted into a special external shell which is connected firmly with the'bed-plate. After the external shell has then been closed by covers at both sides of the inclosed turbinewhich is carried by bearings in said covers,-

of the inclosed stationary air, and onthe other hand to keep the turbine bearings "so far from the parts supplying steam that they are maintained at a suitably cool tempera- 40' ture. Further, the construction is such that" the live steam channel and the steam supply pipe are situated in the one insulating chamer in the exterior shell, so that just here the.

- losses due to radiation are effectively checked. At the two sides of theexhaust conduit an exhaust steam chamber is alsom ade in the external shell b suitable ribs and well-fitting ,fac'es, so that t e exhaust-pipe'socket isnot E-previded on thejturbine-housing. propenibut on the external shell. This modeof construction has the additional advantage t hat 'in the case of tur ines' isiscrewed to the'stae -;tionary exterior shell and therefore in case I of needfthe"-t1'1;rbine can be dismembered :nbs the condenser pipp-which is relatively large j b flnr me,

Lastly,.the employment bf especial external shell around the turbine-housmgproper enables the completely assembled turbine to be built and carried centrically conveniently and admits of the turbine proper expanding without hindrance.

In order that the invention may be clearly understood reference will be made to the accompanying drawing in which one 'embodiment is represented 'by way of example, and in which:

Figure 1 is a front elevation, and Fig. 2 a longitudinal section of an exterior shell in-' closing a turbine. I '70 Referring to the drawng, a is the cylindrical external shell adaptd to be attached by means of its two brackets or legs I) to a bed-plate or other foundation. The shell has two cylindrical guides c and (Z having wellfitting faces or ribs 6 and and the assem bled turbine '51 is placed into this external shell. The well-fitting flanges h and i pro-, vided at the turbine at the two sides of the exhaust conduit enable a'tight joint to be made conveniently, so that the exhaust chamber 7c is formed in the shell and the ex-- haust-pipe socket Z can be arranged on the station'ary shell. Thecover i also serves as support for the bearing m of the rotor of the turbine, whereas the cover it at the'other side of theshellcan support the other bearing on the high pressure slde. Steam is supplied to the turbine through the socket'o. it is possible on the one hand to insulate the 35 turblne in its entirety efficiently with the aid What Iclaim as my invention and desire to secure by Letters Patent 2 '1.:-The combination with an assembled turbine," of ashell having internal guides to receive said: turbine when shoved into said shell axially; I v

2. The combination with a shell having internal guidesfand ribs, of an assembled turbine adapted to be shoved axially into saidsheil and to fitin said guides, GildxPI'O .vided with flanges to make tight j oints with said ribs,

3-. The combination with a shell having internal cylindrical guides and ribs, of an assembled tu-rbine having a cylindrical housing fittirfginto said guides and provided with 165 circumferential fianges against said eslcohrbination, withfi assembled of-alive steam pi e connected therewith, andanexterior she having an exhaust steam outlet; andan opening. for said live steam pipe, said,shell inclosing; said turbine and fitting..the same steam-tight at both sides revolubly by said, covers, as set forth, for the of said outlet, for the purpose specified. purpose specified.

, 5. The combination, with an assembled In testlmony whereof, I have signed my turbine, of alive steam pipe connected therename to this specification in the presence of 5 with, an elxteriof1 shell havingfan'ezedhaiust two subscribing witnesses. steam out et an an opening or sai ive steam pipe, said shell inclosing said turbine HUGO LENTZ' and fitting the same steam-tight at both sides Witnesses:

of said outlet, and detachable covers for said C. FREMY, 10 shell, the rotor of said turbine being carried I GUSTAV BKHR. 

